Calking machine



March 15, 1932. o. F. EC'ZKROATE CALKING MACHINE Filed July 11, 1928 4 Sheets-Sheet l VEN' I'OR wzgw ATTORNEYS.

March 15, 1932. o. F. ECKROATE CALKING MACHINE Filed July 11, 1928 4 Sheets-Sheet 2 ATTORNEYS.

; gNYgTOR I March 15, 1932.

o F. ECKROATE 1,849,078

CALKING MACHINE Filed Juiy 11, 1928 -4 Sheets-Sheet 5 fl F1: 5-.

BY MAM ATTORNEYS.

March 15, 1932. Q F, mg; 1,849,078

cmuue mcums Filed July 11. 1928 4 sheets-sheet 4 Fig-: J 2.?

INVENTOR QM BY Y ATTORN EYS through the end Patented Mar. 15, 1932 UNITED STATES PATENT OFFICE:

PANY, OF BAYONNE, NEW JERSEY, A CORPORATION OF NEWJERSEY GALKING MACHINE 3 Application filed July 11,

best understood from thefollowing descr1p-.

tion when read in connection with the accornp anying drawings, inwhichI have shown selected embodiments of the invention and, in which Fig. 1 is a longitudinal sectional view of a drum and its associated head, and showing one form of the invention.

Fig. 2 is a view similar to Fig. 1, but showing the machine detached from the drum.

Fig. 3 is a section on the line 3-3 of Fig. 2.

Fig. 4 is a view similar to Fig. 1, but showing another form which the invention may take.

Fig. 5 is an enlarged view showing a portion of the strut, appearing in Flg. 4.

Referring first to Figs. 1, 2 and 3, I have shown therein the end of a drum 1 having a which is shown in this case, and which engage clamps 7.

Slidably mounted on the shaft 5 is ahub 8 having oppositely extending arms 9 thread each arm 15 ed thereto. In the form shown,

. in the form of a cylinder having a piston 10 slidable therein, and to the end of each piston is secured a tool 11 which is adapted to calk the seam between the drum and the head. The tool itself may be of any suitable form and, in itself, forms no part of the present invention. For the purposes of illustration, I have shown the tool as of the well-known pneumatic kind, air being supplied thereto through a hose 12, to which the main hose 13 supplies air, the passage of air being controlled by the valve 14:.

1928. serial No. 291,995.

I may conveniently operate the pistons 10 by means of the same .air supply as used for the hammers, and'for that purpose I have- OTTO F. ECKROATE, OF BARBEBTON, OHIO,-ASSIG1\TOR TO THE BABCOCK & WILCOX (3011- shown a valved connection 15 between the hose 13 and the interiorof the hub 8. The interior of the hub is provided with passageways from theconnection 15 to the cylinders 9;

' Each tool is preferably secured to a piston'by a bracket 16 which will hold the tool at the proper angle to call: the seam. The hub itself is slidably. mounted on the shaft 5, as'noted above, and is resiliently urged toward the head by means of akspring 17 Thecompre's'sion of the spring 17 may be adjustedby a nut 18 threaded upon the shaft,

and further by a washer 19 interposed between the spring and nut. In this connection, it will be notedthat the washer 19 in Fig. 1 is thinner than the washer 19 in Fig. 2, which is to indicate that various sizes of washers may be used to adjust the spring. The shaft may be secured to the bushing 4; in any suitable manner as by a nut 1 2 0 threaded upon the end of the shaft. In order to hold the pistons 10 in correct position to prevent turning of the tools from operative relEation to the seam, each piston is provided withoppositely disposed slots 21 shown 7 to the, cylinder as best shown in Fig. 3.

In operation, the machine is secured in position in the 'drum' and air is admitted to the cylinders 9 to operate the pistons outwardly until the tools come into engagement with. the drum adjacent the seam. The hub may then be adjusted to-correct position'to bring the tools into operative relation with respect to the seam, and thenthe tools may be operated by applying air thereto in the usual manner. The hub and the arms carried thereby may be rotated on the shaft to call; the seam throughoutits length.

Referring now to Figs. 4 and 5, I have shown therein a modification in which the 9 therein and held against rotation by a projection 27 running in a slot 28. Rotatably mounted in the gear box are bevel gears 29 meshing with an intermediate gear 30 having a squared end 31 to which a tool may be attached for operating the gears. Each gear 29 is secured to a stem 32 which has threaded engagement with a piston 26.

Each piston carries at its end a head 33 which may have a recess 34; therein to engage. the head of a rivet 35, if desired. The hub 8,. cylinders 9, pistons 10 and tools 11 in this form, are all made identical with those shown in Figs. 1 and 2, and will not be described again in detail.

In operating the form just described, a strut may be inserted within the drum head, and the heads 33 may, if desired, be engaged with rivets in order to prevent turning there,

- of. The operation ofthe squared end 31 will cause movement of the heads 33 outwardly until the strut is fixed rigidly in position. Then the tools may be brought to proper operating position, as described in connection with the other embodiment, and the calking operation may proceed in the way previously described. v

WVhile I have shown selected embodiments of my invention, it is to be' understood that they are to be considered as illustrative, and

that I do not intend to limit myself except by the appended claims.

I claim:

1. A calking machine comprising a shaft,

'* means to support said shaft in a drum adjacent the head thereof, a hub slidably mounted on said shaft, an arm extendinglaterally from said hub, a tool carried onthe end of said arm and adapted to calkthe seam between said head and said drum, and means resiliently holding said hub inposition to cause engagement of said tool with the edge of said head.

2. A calking machine. comprising a shaft,

5-,, means to support said shaft in a drum longitudinally thereof, a hub slidable and rotatable upon said shaft, a spring urging said hub toward the head of said drum, and means carried by said hub to support a tool adapted '1 to calk the seam between the drum and the head.

3. In a machine adapted to calk a seam on the inner surface of a drum, a shaft extending longitudinally of the drum, means to support said shaft substantially on the axis of the drum, a hub rota-tably mounted on said shaft, an arm extending outwardly from said hub, a tool adapted to calk said seam and mounted onthe outer end of said arm, said f tool operating on a line atan acute angle to said drum surface, and means resiliently urging said hub along the shaft towards said seam.

4,. In a machine adapted to call; a seam on the inner surface of a a shaft e ending longitudinally of the drum, means to support said shaft substantially on the axis of the drum, a hub rotatably mounted on said shaft, an arm extending outwardly from said hub, a tool adapted to calk said seam and mounted on the outer end of said arm, said tool operating on a line at an acute angle to said drum surface, a nut threaded on said shaft, and a spring disposed between said nut and hub andv adapted to urge the hub along the shaft towards said seam.

5. In a machine adapted to calk a seam on the inner surface of a. drum, a shaft extending longitudinally of the drum, means to support said shaft substantially on the axis of the drum, a hub rotatably mounted on said shaft, a cylindrical arm extending outwardly from said hub, a piston slidable in said arm, a tool mounted on said piston and adapted to calk said seam, fluid-pressure means to operate said piston and said tool, and cooperating means on said piston and cylinder to prevent rotation of the piston in the cylinder. 

